def test_get_value_throws_if_nothing_is_stored():
timespan_metric = metrics.TimespanMetricType(
disabled=True,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="timespan_metric",
send_in_pings=["store1"],
time_unit=TimeUnit.MILLISECOND,
)
with pytest.raises(ValueError):
timespan_metric.test_get_value()
def test_disabled_timespans_must_not_record_data():
timespan_metric = metrics.TimespanMetricType(
disabled=True,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="timespan_metric",
send_in_pings=["store1"],
time_unit=TimeUnit.MILLISECOND,
)
timespan_metric.start()
timespan_metric.stop()
assert not timespan_metric.test_has_value()
def test_set_raw_nanos():
timespan_nanos = 6 * 1000000000
timespan_metric = metrics.TimespanMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="timespan_metric",
send_in_pings=["store1"],
time_unit=TimeUnit.SECOND,
)
timespan_metric.set_raw_nanos(timespan_nanos)
assert 6 == timespan_metric.test_get_value()
def test_the_api_saves_to_secondary_pings():
timespan_metric = metrics.TimespanMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="timespan_metric",
send_in_pings=["store1", "store2"],
time_unit=TimeUnit.MILLISECOND,
)
timespan_metric.start()
timespan_metric.stop()
assert timespan_metric.test_has_value("store2")
assert timespan_metric.test_get_value("store2") >= 0
def test_measure():
timespan_metric = metrics.TimespanMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="timespan_metric",
send_in_pings=["store1"],
time_unit=TimeUnit.NANOSECOND,
)
with timespan_metric.measure():
time.sleep(0.1)
assert timespan_metric.test_has_value()
assert 0 < timespan_metric.test_get_value()
def test_measure_exception():
timespan_metric = metrics.TimespanMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="timespan_metric",
send_in_pings=["store1"],
time_unit=TimeUnit.NANOSECOND,
)
with pytest.raises(ValueError):
with timespan_metric.measure():
time.sleep(0.1)
raise ValueError()
assert not timespan_metric.test_has_value()
def test_the_api_must_correctly_cancel():
timespan_metric = metrics.TimespanMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="timespan_metric",
send_in_pings=["store1"],
time_unit=TimeUnit.MILLISECOND,
)
timespan_metric.start()
timespan_metric.cancel()
timespan_metric.stop()
assert not timespan_metric.test_has_value()
assert 1 == timespan_metric.test_get_num_recorded_errors(
testing.ErrorType.INVALID_STATE)
def test_set_raw_nanos_does_nothing_when_timer_is_running():
timespan_nanos = 6 * 1000000000
timespan_metric = metrics.TimespanMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="timespan_metric",
send_in_pings=["store1"],
time_unit=TimeUnit.SECOND,
)
timespan_metric.start()
timespan_metric.set_raw_nanos(timespan_nanos)
timespan_metric.stop()
assert 6 != timespan_metric.test_get_value()
def test_records_an_error_if_started_twice():
timespan_metric = metrics.TimespanMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="timespan_metric",
send_in_pings=["store1", "store2"],
time_unit=TimeUnit.MILLISECOND,
)
timespan_metric.start()
timespan_metric.start()
timespan_metric.stop()
assert timespan_metric.test_has_value("store2")
assert timespan_metric.test_get_value("store2") >= 0
assert 1 == timespan_metric.test_get_num_recorded_errors(
testing.ErrorType.INVALID_STATE)
def test_value_unchanged_if_stopped_twice():
timespan_metric = metrics.TimespanMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="timespan_metric",
send_in_pings=["store1"],
time_unit=TimeUnit.MILLISECOND,
)
timespan_metric.start()
timespan_metric.stop()
assert timespan_metric.test_has_value()
value = timespan_metric.test_get_value()
assert value >= 0
timespan_metric.stop()
assert value == timespan_metric.test_get_value()